-29.89% is the change from 609 to 427
Calculation steps:
[( 427 - 609 ) ÷ 609] x 100 = -29.89%
Formula
Percentage change = [(427 - 609) / 609] x 100
Subtract the new number by the original number
427 - 609 = -182
-182 ÷ 609 = -0.2988505747126437
-0.2988505747126437 x 100 = -29.89%